초록 ▼

This invention relates to a disposable cassette having a pumping chamber therein and with a controlled positive displacing pump driving apparatus for use with the cassette, for performing intravenous or intra-arterial infusions. More particularly, it pertains to disposable cassettes which include an

This invention relates to a disposable cassette having a pumping chamber therein and with a controlled positive displacing pump driving apparatus for use with the cassette, for performing intravenous or intra-arterial infusions. More particularly, it pertains to disposable cassettes which include an exposed flexible diaphragm forming one wall of the pump chamber and adapted to be engaged by a plunger or piston member driven and controlled by the driver apparatus to pump fluid through the cassette.

대표청구항 ▼

A pump cassette adapted to be driven by a pump driver having a plunger and valve actuators, comprising: a cassette inlet, a cassette outlet and a fluid path therebetween; a rigid face member; a rigid back member having an enlarged recess forming a pumping chamber along said fluid path; an elastomeri

A pump cassette adapted to be driven by a pump driver having a plunger and valve actuators, comprising: a cassette inlet, a cassette outlet and a fluid path therebetween; a rigid face member; a rigid back member having an enlarged recess forming a pumping chamber along said fluid path; an elastomeric member positioned between said face and back members; said face member including a plunger opening therethrough opposite said pumping chamber to permit the passage of the plunger and valve actuator openings to permit valve actuators to control the flow of fluid through said pumping chamber; a flow control member mounted on said face member for controlling the flow of fluid along said fluid path; and air detection means projecting from said face member to detect the presence of air in said cassette.